Ever notice that your fingers differ in length and strength? IronMind did and set out to design a sharp-looking little gripper that allows you to train your fingers one or two at a time, and unlike conventional hand grippers, it also allows you to train your thumb. Think of IMTUG as being like a tug boat-short, stout, powerful and irresistible-in your grip strength and hand health training program. Perfect for standalone training or used in conjunction with Captains of Crush or Zenith grippers, also from IronMind. Comes with complete training information, backed up by IronMind"s expert, ready-to-assist customer service.